@article{DE_1986_22_4_a16,
     author = {V. S. Adamchik},
     title = {Hyper{\textendash}Bessel solutions of a differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {697--700},
     year = {1986},
     volume = {22},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_4_a16/}
}